.category{
    margin-top: 44px;
    display: flex;
    height: 90vh;
}
.category_left{
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 90px;
}
.category_left>a{
    text-align: center;
    display: inline-block;
    line-height: 45px;
    height: 45px;
    width: 100%;
    color: #666666;
    font-size: 14px;
    border-bottom: 1px solid #c9c9c9;
    border-right: 1px solid #c9c9c9;
}
.category_left>a.active{
    border-right: 1px solid transparent;
    background-color: #ffffff;
}

.category_right{
    flex: 1;
    height: 100%;
    background-color: #ffffff;
}
.category_right ul{
    width: 100%;
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
}
.category_right ul li{
    width: 33.3%;
}
.category_right ul li>a{
    display: inline-block;
    text-align: center;
}
.category_right a>img{
    vertical-align: middle;
    width: 100%;
}